Is it permissible to eat halal food two hours after eating forbidden food and feeling full?

It is not permissible for a Muslim to consume that which is unlawful. If one does so intentionally, he must repent and vomit, if possible. If it was by mistake, it is preferable to vomit. As for consuming that which is lawful, it is permissible, and its lawfulness is not affected by its previous nourishment with something unlawful. However, introducing food on top of food before it has been digested may be harmful to health.